<?xml version="1.0"?>
<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<para>
In <acronym>UNIX</acronym>,
<command>ls</command> is used to get a directory listing.
</para>
